body {
    background:
        radial-gradient(circle at top right, rgba(191, 66, 84, 0.12), transparent 28%),
        linear-gradient(180deg, var(--light-color) 0%, var(--white) 28%, var(--lighter-color) 100%);
}

/* ============================================
   Page layout
   ============================================ */
.protocol-page {
    width: min(var(--page-max-width), calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 4rem;
}

/* ============================================
   Shared card base
   ============================================ */
.intro-card,
.meta-card,
.members-card,
.devices-card,
.notes-card,
.signatures-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-md);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
}

/* ============================================
   Intro card
   ============================================ */
.intro-card {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.intro-card h2 {
    font-size: clamp(1.45rem, 2.2vw, 2rem);
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.howto-list {
    padding-left: 1.25rem;
    display: grid;
    gap: 0.55rem;
}

/* ============================================
   Section header pattern
   ============================================ */
.section-header {
    margin-bottom: 1.25rem;
}

.section-header h2 {
    font-size: 1.35rem;
    margin-bottom: 0.35rem;
}

.section-desc {
    color: var(--gray-color);
    max-width: 72ch;
}

/* ============================================
   Meta section (date + address)
   ============================================ */
.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.meta-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.meta-label {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--gray-color);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.meta-input {
    font-family: inherit;
    font-size: 1rem;
    color: var(--dark-color);
    border: none;
    border-bottom: 2px solid var(--gray-light);
    background: transparent;
    padding: 0.4rem 0;
    transition: border-color 0.2s ease;
    outline: none;
}

.meta-input:focus {
    border-bottom-color: var(--primary-color);
}

/* ============================================
   Members section
   ============================================ */
.members-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.member-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(238, 242, 248, 0.92) 100%);
    border: 1px solid rgba(180, 185, 193, 0.45);
    border-radius: 14px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.member-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.member-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.field-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--gray-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.field-input {
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--dark-color);
    border: none;
    border-bottom: 1.5px solid var(--gray-light);
    background: transparent;
    padding: 0.3rem 0;
    outline: none;
    transition: border-color 0.2s ease;
}

.field-input:focus {
    border-bottom-color: var(--primary-color);
}

.field-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-color);
    margin-top: 0.15rem;
    line-height: 1.3;
}

/* ============================================
   Device table
   ============================================ */
.table-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
    padding: 0.85rem 1rem;
    background: var(--lighter-color);
    border-radius: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.88rem;
}

.legend-checkbox-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1rem;
    height: 1rem;
    border: 1.5px solid var(--gray-color);
    border-radius: 3px;
    flex-shrink: 0;
    background: var(--white);
}

.legend-desc {
    color: var(--gray-color);
}

.device-table-wrapper {
    overflow-x: auto;
}

.protocol-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 960px;
}

.protocol-table th,
.protocol-table td {
    text-align: left;
    vertical-align: middle;
    padding: 0.75rem 0.7rem;
    border-bottom: 1px solid rgba(180, 185, 193, 0.35);
}

.protocol-table th {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--gray-color);
    background: var(--lighter-color);
    position: sticky;
    top: 0;
}

.protocol-table tbody tr:last-child td {
    border-bottom: none;
}

.protocol-table tbody tr:hover {
    background: rgba(191, 66, 84, 0.03);
}

.row-num {
    color: var(--gray-color);
    font-size: 0.85rem;
    text-align: center;
    width: 2rem;
}

.device-cell {
    min-width: 10rem;
    vertical-align: top;
}

.location-cell {
    font-size: 0.92rem;
    color: var(--gray-color);
    min-width: 8rem;
    vertical-align: top;
}

.data-cell {
    min-width: 10rem;
    vertical-align: top;
}

.checkbox-cell {
    text-align: center;
    width: 5rem;
}

.checkbox-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.protocol-checkbox {
    width: 1.15rem;
    height: 1.15rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.notes-cell {
    min-width: 12rem;
}

.notes-input {
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--dark-color);
    width: 100%;
    border: none;
    border-bottom: 1.5px solid var(--gray-light);
    background: transparent;
    padding: 0.25rem 0;
    outline: none;
    transition: border-color 0.2s ease;
}

.notes-input:focus {
    border-bottom-color: var(--primary-color);
}

/* ============================================
   Notes section
   ============================================ */
.notes-card h2 {
    font-size: 1.35rem;
    margin-bottom: 0.35rem;
}

.notes-textarea {
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--dark-color);
    width: 100%;
    margin-top: 0.85rem;
    border: 1.5px solid var(--gray-light);
    border-radius: 10px;
    background: var(--lighter-color);
    padding: 0.75rem 1rem;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s ease;
}

.notes-textarea:focus {
    border-color: var(--primary-color);
}

/* ============================================
   Signatures section
   ============================================ */
.signatures-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: 0.25rem;
}

.signature-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sig-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-color);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.sig-line {
    height: 3rem;
    border-bottom: 2px solid var(--dark-color);
}

.sig-hint {
    font-size: 0.8rem;
    color: var(--gray-color);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1100px) {
    .members-grid,
    .signatures-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .intro-card {
        grid-template-columns: 1fr;
    }

    .meta-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .protocol-page {
        width: min(100% - 1rem, 1280px);
        padding: 1rem 0 3rem;
    }

    .page-actions {
        flex-direction: column;
    }

    .action-button {
        width: 100%;
    }

    .members-grid,
    .signatures-grid {
        grid-template-columns: 1fr;
    }

    .intro-card,
    .meta-card,
    .members-card,
    .devices-card,
    .notes-card,
    .signatures-card {
        padding: 1.1rem;
    }
}

/* ============================================
   Print styles
   ============================================ */
@media print {
    @page {
        size: A4 landscape;
        margin: 1.2cm 1.4cm;
    }

    body {
        background: none !important;
        color: #000;
        font-size: 9pt;
        line-height: 1.35;
        filter: grayscale(1);
    }

    header {
        background: none !important;
        color: #000 !important;
        box-shadow: none !important;
        border-bottom: 2pt solid #000;
        padding: 0.4cm 0 0.3cm;
        text-align: left;
    }

    header h1 {
        font-size: 15pt;
    }

    .subtitle {
        font-size: 9pt;
        opacity: 1;
    }

    footer,
    .page-actions,
    .howto-mini {
        display: none !important;
    }

    .protocol-page {
        width: 100%;
        padding: 0;
    }

    .intro-card,
    .meta-card,
    .members-card,
    .devices-card,
    .notes-card,
    .signatures-card {
        background: none !important;
        border: 1pt solid #bbb;
        border-radius: 0;
        box-shadow: none;
        padding: 0.35cm 0.45cm;
        margin-bottom: 0.4cm;
        break-inside: avoid;
    }

    .intro-card {
        grid-template-columns: 1fr;
    }

    .intro-text-area p:not(.eyebrow) {
        display: none;
    }

    /* Meta fields */
    .meta-input {
        border-bottom: 1pt solid #000;
        font-size: 9pt;
    }

    /* Members */
    .members-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .member-card {
        background: none !important;
        border: 1pt solid #bbb;
        border-radius: 0;
        padding: 0.3cm;
    }

    .field-input {
        border-bottom: 1pt solid #000;
        font-size: 9pt;
    }

    /* Device table */
    .table-legend {
        background: none;
        border: 1pt solid #ccc;
        font-size: 8pt;
        padding: 0.2cm 0.3cm;
        margin-bottom: 0.3cm;
    }

    .protocol-table {
        min-width: 0;
        font-size: 8pt;
    }

    .protocol-table th {
        background: #eee !important;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
        font-size: 8pt;
        padding: 0.2cm 0.25cm;
    }

    .protocol-table td {
        padding: 0.2cm 0.25cm;
    }

    .protocol-table tbody tr:hover {
        background: none;
    }

    .protocol-checkbox {
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
        appearance: auto;
        -webkit-appearance: auto;
        width: 0.9rem;
        height: 0.9rem;
    }

    .notes-input {
        border-bottom: 1pt solid #000;
        font-size: 8.5pt;
    }

    /* Notes textarea */
    .notes-textarea {
        border: 1pt solid #000;
        background: none;
        font-size: 9pt;
        height: 2cm;
        resize: none;
    }

    /* Signatures */
    .signatures-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 1.5cm;
    }

    .sig-line {
        border-bottom: 1.5pt solid #000;
        height: 1.5cm;
    }
}